The 2017 Skidoo 850 models come with the P-Drive primary clutch.
We have the following options available for this primary clutch:
The following springs are load tested as a  “ Assembly with guides* @79.4mm, and  @45mm“
As an example, BRP list one of the 850 stock primary springs (417224168) as 150/350** in this method and list it as BL/PL (Blue/Purple).
Dalton Blue/Pink DPDS-BL/PK 120 lbs
285 lbs
Dalton Dark Blue DPDS-DBL 135 lbs
325 lbs
Dalton White/Tan/White                     DPDS-W/T/W 150 lbs
305 lbs
Dalton White/Yellow/White DPDS-W/Y/W 210 lbs
340 lbs
Dalton White/Silver/White                DPDS-W/S/W 248 lbs
450 lbs
Dalton White/Red/Black DPDS-W/R/B 170 lbs 360 lbs
Dalton White/Blue/Black DPDS-W/BL/B 170 lbs 385 lbs
Dalton Red DPDS-RP 100 lbs 360 lbs
Dalton Black/yellow/pink DPDS-B/Y/PK 185 lbs 415 lbs
Dalton Purple/Silver DPDS-PL/S 130 lbs 370 lbs
 *These springs are not closed on the ends like other springs, so they get load tested in assembled form with caps. BRP list them as “Assembly with guides” when giving load test data.
** When we load test the factory Skidoo part number 417224168 we get 157/355 (for comparison).

Product Specifications

Product Name:

Ski-Doo P-Drive primary springs


Primary Springs



For :


Suggested list price :

CAD $33.00 / USD $30.00


Nov 2016

Additional Notes:

Frequently Asked Question:  What spring do you suggest I use?

Answer:  Dalton Industries is a supplier of individual components for those who tune their own clutches, as well as performance shops and clutch kit companies. We build a wide selection of high quality parts for testing and tuning, based on demand from those mentioned. We do not, and have never made any clutch tuning "kits", packages, or recommendations for clutch set up of individual snowmobile applications. If you prefer clutch kits, there are some companies listed on the FAQ page that may help.

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